Parton-to-pion fragmentation reloaded

被引：184
|
作者：
de Florian, Daniel [1 ,2 ]
Sassot, R. [1 ,2 ]
Epele, Manuel [3 ]
Hernandez-Pinto, Roger J. [1 ,2 ,4 ]
Stratmann, Marco [5 ]
机构：
[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina
[2] Univ Buenos Aires, Fac Ciencias Exactas & Nat, IFIBA, RA-1428 Buenos Aires, DF, Argentina
[3] Univ Nacl La Plata, Fac Ciencias Exactas, Dept Fis, CONICET UNLP,Inst Fis La Plata, RA-1900 La Plata, Buenos Aires, Argentina
[4] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46980 Valencia, Spain
[5] Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany
来源：
PHYSICAL REVIEW D | 2015年 / 91卷 / 01期
关键词：
LEADING ORDER EVOLUTION; QCD CORRECTIONS; CROSS-SECTIONS; E+E-ANNIHILATION; CHARGED HADRONS; HIGGS DECAY; LIGHT; TRANSVERSE; COLLISIONS; DENSITIES;
D O I：
10.1103/PhysRevD.91.014035
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a new, comprehensive global analysis of parton-to-pion fragmentation functions at next-to-leading-order accuracy in QCD. The obtained results are based on the latest experimental information on single-inclusive pion production in electron-positron annihilation, lepton-nucleon deep-inelastic scattering, and proton-proton collisions. An excellent description of all data sets is achieved, and the remaining uncertainties in parton-to-pion fragmentation functions are estimated based on the Hessian method. Extensive comparisons to the results from our previous global analysis are performed.
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页数：17
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